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McCarthy died Saturday, said Cape Cod Hospital spokesman Dave Riley. He did not reveal the cause of death.

Notable Deaths: The Decade in Memoriam

In the classic 1950s film, McCarthy played a doctor trying to save his townfrom evil aliens who were stealing people's personalities. His frantic shouting of "You're next!" to motorists was perhaps his most famous scene.

He also appeared in one other classic film, although in a much smaller role. He was Marilyn Monroe's estranged husband in her last movie, 1961's "The Misfits."

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In 1978, he began touring in the one-man show "Give 'em Hell, Harry," playing the Harry Truman role created by James Whitmore. Over the years he appeared as Truman in 350 venues.

McCarthy was born in Seattle on Feb. 15, 1914. He, his sister, author Mary McCarthy, and their two brothers were orphaned when their parents died in the 1918 influenza epidemic, and they were raised by relatives.